Masters Theses

Keywords and Phrases

ASTM C31; Compaction; Workability

Abstract

"The goal of this research was to reevaluate ASTM C31 Standard Practice for Making and Curing Concrete Test Specimens in the Field, as well as deepen our understanding of the relationship between the consolidation process, concrete composition, and workability. An improved understanding of this area will help to reduce variability in concrete quality. The project involved evaluating the effect of different consolidation methods on concrete specimens with changing levels of workability. To do this, concrete cylinders were created with varying viscosities by adjusting the water-to-cement ratio (w/c) and water-reducing agent. More cylinders were created with varying paste volumes while keeping the paste composition and aggregate gradation constant. Then cylinders with different gradations were created. The consolidation methods used in this experiment were rodding and vibrating. Both methods were used, with a wide range of amounts of consolidation energy, on all concrete mixtures. All cylinders were tested for segregation, which indicates over-consolidation. They were also tested for saturated surface-dry (SSD) density and compressive strength, as an indication of if the cylinders were under-consolidated"--Abstract, p. iii

Advisor(s)

Feys, Dimitri

Committee Member(s)

ElGawady, Mohamed
Schuman, Thomas P.

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Spring 2023

Pagination

xiv, 209 pages

Note about bibliography

Includes_bibliographical_references_(pages 200-208)

Rights

© 2023 Paige Marie Toebben, All Rights Reserved

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12302

Electronic OCLC #

1426308014

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